CN104179858A - Brake pad enhanced with smelting slag and fly ash inorganic fibers as well as preparation method of brake pad - Google Patents
Brake pad enhanced with smelting slag and fly ash inorganic fibers as well as preparation method of brake pad Download PDFInfo
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- CN104179858A CN104179858A CN201410364673.5A CN201410364673A CN104179858A CN 104179858 A CN104179858 A CN 104179858A CN 201410364673 A CN201410364673 A CN 201410364673A CN 104179858 A CN104179858 A CN 104179858A
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Abstract
The invention discloses a brake pad enhanced with smelting slag and fly ash inorganic fibers as well as a preparation method of the brake pad. The brake pad is prepared from raw materials, namely, inorganic fibers, glass fibers, an adhesive, a lubricant and packing. The brake pad comprises the components in percentage by weight as follows: 25%-35% of the inorganic fibers, 10%-20% of the glass fibers, 13%-20% of modified phenolic resin, 5%-15% of epoxy resin and 20%-40% of powder packing. The brake pad has the advantages that the brake pad takes the complex fibers as an enhancing material, so that the thermal stress of the internal structure of the prepared brake pad is evenly distributed, and defects that expansion, cracks and the like appear easily during usage are overcome; the brake pad is stable in high-temperature friction coefficient and good in abrasion resistance and has characteristics of low cost and high production efficiency.
Description
Technical field
The present invention relates to brake system of car technical field, specifically relate to a kind of utilization and smelt slag and the fibre-reinforced brake block of fly ash inorganic and preparation method thereof.
Background technique
Braking system is one of most important safety system on automobile, and along with the development of automotive industry and the enhancing of people's safety consciousness, the braking problem of vehicle is subject to people's attention gradually, and brake block is to have suffered parts important in braking system.At present for the brake block of braking, mainly contain three classes: asbestos base brake block, semi-metallic based brake block and without asbestos organic substance type brake block.
Asbestos base brake block is resistant to elevated temperatures feature because asbestos fiber has, and therefore can meet the requirement of brake block and clutch disk, has the anti-tensile ability of fiber and certain hardness and wear resistance simultaneously.Yet asbestos base brake block produces easily carcinogenic asbestos dust in brake process, have a strong impact on health of people, simultaneously because asbestos are thermoinsulation materials, its capacity of heat transmission is poor especially, conventionally Reusability break can make heat assemble in brake block, and its braking ability will change, and produces " braking atrophy " phenomenon, cause brake failure, so asbestos brake lining is eliminated at present substantially.
Another kind of semipermanent mold brake block, mainly adopts Steel Wool to make as the mixture of reinforced fibers and tackiness agent composition.Its major advantage is to adapt to the work under higher temperature, and sturdy and durable.But semi-metallic based mixture type brake block interior metal content, compared with high and intensity is large, needs higher retardation pressure complete braking effect.Particularly in low temperature environment, high tenor means that brake block can cause larger brake disc or the surface abrasion of brake drum, can produce noise simultaneously, and semi-metallic brake pad corrosion under moisture effect is serious, in use dust is easily adsorbed on wheel hub, be difficult to clean, be subject to its Long-term Effect, easily cause wheel hub corrosion.
Without asbestos organic substance type (NAO type) brake block, mainly use the fibers such as glass fibre, aromatic polyester fiber, carbon fiber or ceramic fiber as reinforcement material, its performance depends primarily on the character of the type of fiber and the mixture of other interpolation, is the developing direction of current brake block.NAO type brake block is due to the different characteristics with many excellences of fiber of adapted.As the Chinese patent of publication number CN l0l671465A discloses a kind of preparation method of ethoxyline resin/polytetrafluoroethylcomposite composite material, this invention is used for making automobile brake sheet, can reduce wear extent, increase working life, preparation method is simple, cost is low, good manufacturability, but this invention does not solve the problem without asbestos organic substance type (NAO plough) brake block thermal conductivity and high temperature controllability.And the application for a patent for invention that number of patent application is 200510012626.5 discloses a kind of employing ceramic fiber enhancement mode brake block.This enhancement mode brake block have strengthen the property, friction factor is tall and big, long service life, the advantage such as non-corroding, noise are low.But because ceramic fiber quality is more crisp, ceramic brake performance is stable not, a lot of brake blocks are when high temperature, and its friction factor easily fails, easily occurs locking or the phenomenon of dawdling.Even occur that friction material expands, the serious quality problems such as friction surface crackle and price are also high.
Smelting slag and coal ash fiber is that the industrial solid castoffs such as smelting slag and pulverized fuel ash are allocated through elemental constituents such as Si, Al, Ca, a kind of inorfil forming by centrifugal spray silk by high melt.Its main component is that the oxide by elements such as Si, Al, Ca, Fe forms, and that this fiber has is high temperature resistant, rub resistance, corrosion-resistant, antifatigue, intensity is high, density is low, water resistant, lower-price characteristic, is a kind of novel metalloid inorganic material.It and metal, pottery, glass fibre etc. have good affinity, can adapt to different component shape, convenient formation.In addition, slag and coal ash fiber also possess the characteristics such as fatigue resistance is high, thermal expansion coefficient is little, specific resistance is little.The present invention coordinates it with glass fibre, through tackiness agent and powder filler moulding, be prepared into the brake block that slag and fly ash inorganic fiber and glass fibre strengthen, and can make up all deficiencies of above brake block.
Summary of the invention
This is for above technical problem, the invention provides a kind of utilization and smelt slag and the fibre-reinforced brake block of fly ash inorganic and preparation method thereof, by the improvement in fibrous structure and component, in solution prior art, noise is higher, high temperature friction unstable properties, easily occur locking or dawdle, cost is compared with high-technology problem.
The invention provides a kind of utilization and smelt slag and the fibre-reinforced brake block of fly ash inorganic, comprise slag and fly ash inorganic fiber, described slag and fly ash inorganic fiber are that to make the mass content of Si:Al:Ca element be wherein 19～26:15～22:8～12 through composite by smelting slag and pulverized fuel ash, then through melting furnace high temperature oxygen blast melting transform, centrifugal high speed fibroblast makes the inorfil that length is 1～8mm.
Further, the weight percentage of its each composition is: smelt slag and fly ash inorganic fiber: 25%-35%; Glass fibre: 10%-20%; Phenol-formaldehyde resin modified: 13%-20%; Epoxy resin: 5%-15%; Powder filler: 20%-40%.
Further, described powder filler is mixed by following material component, and the weight percentage of its each material component is: copper powder: 15%-35%; Aluminium oxide: 5%-20%; White clay: 15%-30%; French chalk: 5%-15%; Plumbago: 5%-10%; Barium sulphate: 5%-15%; Iron powder 5%-10%.
The present invention also provides a kind of preparation method who smelts slag and the fibre-reinforced brake block of fly ash inorganic that utilizes, and preparation method is following steps:
(1) phenol-formaldehyde resin modified, epoxy resin are mixed after and anhydrous alcohol according to mass ratio 6:l.5, dissolve, make resin alcohol solution.
(2) each component of powder being filled and presented is fully mixed under homogenizer, and be dried processing and makes mixed fillers.
(3) the resin alcohol solution, the mixed fillers that in banburying tank, in proportion inorfil, glass fibre and (1), (2) are made fully mix, through hydraulic press heating and mould pressing moulding profiled member processed, finally by reprocessings such as polishings, make brake block again.
Further, in step (3), molding temperature is 150 ℃-155 ℃ of temperature, 3 hours-5 hours time.
Friction material of the present invention is comprised of reinforcing material, binder, stuffing and frictional property regulator four major parts conventionally.The present invention uses slag and coal ash fiber to coordinate as reinforcing material with glass fibre, can well absorb the noise that friction material sends because of braking, there is good resistance to high temperature, extremely low thermal conductivity, can effectively reduce character of heat-fading and the expansibility of other material in membrane material, improve the stability during friction material is used.And binder is the important component part in friction material, affect friction material heat fade performance, restorability and abrasion resistance properties.The present invention adopts good epoxy resin and the good phenol-formaldehyde resin modified of flame retardant property of adhesive property.Stuffing is mainly for improving friction torque and the friction factor of friction material, increase the wear-resistant coefficient of friction material, the present invention is realized by adding copper powder, iron powder and other metal oxide powders, and frictional property regulator mainly carries out noise abatement by graphite etc. and improves the wearing coefficient of friction material.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Below in conjunction with embodiment, describe the present invention in detail.
Embodiment 1
(1) slag and coal ash fiber 35kg are mixed with the glass fibre 10kg that is cut in advance 5mm;
(2) 20kg phenol-formaldehyde resin modified is mixed with 5kg epoxy resin, then dissolve according to mass ratio 6:1.5 by resin and anhydrous alcohol, make resin alcohol solution.
(3) again by copper powder 10kg, iron powder 3kg, aluminium oxide 4kg, white clay 8kg, French chalk 5kg, barium sulphate 4.5kg, plumbago 5kg, fully mix 40min, and drying is made mixed fillers under homogenizer.
(4) then in banburying tank, the resin alcohol solution, blend fiber, the filler that make above are fully uniformly mixed, again through 155 ℃, 3 hours hot-die press-formed parts, make finally by reprocessings such as polishings the brake block that slag and fly ash inorganic fiber and glass fibre strengthen.
Embodiment 2
(1) slag and coal ash fiber 30kg are mixed with the glass fibre 15kg that is cut in advance 5mm;
(2) 15kg phenol-formaldehyde resin modified is mixed with 8kg epoxy resin, then dissolve according to mass ratio 6:1.5 by resin and anhydrous alcohol, make resin alcohol solution.
(3) again by copper powder 14kg, iron powder 2.2kg, aluminium oxide 3kg, white clay 1,26kg, French chalk 4kg, barium sulphate 2.2kg, plumbago 4kg, fully mix 40min, and drying is made mixed fillers under homogenizer.
(4) then in banburying tank, the resin alcohol solution making above, blend fiber fibre, filler are fully uniformly mixed, through 150 ℃.4 hours hot-die press-formed parts.Finally by reprocessings such as polishings, make the brake block that slag and fly ash inorganic fiber and glass fibre strengthen.
Embodiment 3
(1) slag and coal ash fiber 25kg are mixed with the glass fibre 10kg that is cut in advance 5mm;
(2) 13kg phenol-formaldehyde resin modified is mixed with 15kg epoxy resin, then dissolve according to mass ratio 6:1.5 by resin and anhydrous alcohol, make resin alcohol solution.
(3) again by copper powder 12.95kg, iron powder 1.85kg, aluminium oxide 1.85kg, white clay 11.1kg, French chalk 1.85kg, barium sulphate 3.7kg, plumbago 3.7kg, fully mix 40min, and drying is made mixed fillers under homogenizer.
(4) then in banburying tank, the resin alcohol solution making above, blend fiber fibre, filler are fully uniformly mixed, again through 155 ℃, 3 hours hot-die press-formed parts, make finally by reprocessings such as polishings the brake block that slag and fly ash inorganic fiber and glass fibre strengthen.
Embodiment 4
(1) slag and coal ash fiber 35kg are mixed with the glass fibre 20kg that is cut in advance 5mm;
(2) 20kg phenol-formaldehyde resin modified is mixed with 15kg epoxy resin, then dissolve according to mass ratio 6:1.5 by resin and anhydrous alcohol, make resin alcohol solution.
(3) again by copper powder 1.5kg, iron powder 1kg, aluminium oxide 2kg, white clay 2kg, French chalk 1.5kg, barium sulphate 1.5kg, plumbago 0.5kg, fully mix 40min, and drying is made mixed fillers under homogenizer.
(4) then in banburying tank, the resin alcohol solution, blend fiber, the filler that make above are fully uniformly mixed, again through 150 ℃, 4 hours hot-die press-formed parts, make finally by reprocessings such as polishings the brake block that slag and fly ash inorganic fiber and glass fibre strengthen.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. one kind is utilized smelting slag and the fibre-reinforced brake block of fly ash inorganic, it is characterized in that: comprise slag and fly ash inorganic fiber, described slag and fly ash inorganic fiber are that to make the mass content of Si:Al:Ca element be wherein 19～26:15～22:8～12 through composite by smelting slag and pulverized fuel ash, then through melting furnace high temperature oxygen blast melting transform, centrifugal high speed fibroblast makes the inorfil that length is 1～8mm.
2. brake block according to claim 1, is characterized in that: the weight percentage of its each composition is:
。
3. brake block according to claim 2, described powder filler is mixed by following material component, and the weight percentage of its each material component is:
。
4. utilize a preparation method who smelts slag and the fibre-reinforced brake block of fly ash inorganic, it is characterized in that, preparation method is following steps:
(1) phenol-formaldehyde resin modified, epoxy resin are mixed after and anhydrous alcohol according to mass ratio 6:l.5, dissolve, make resin alcohol solution;
(2) each component of powder being filled and presented is fully mixed under homogenizer, and be dried processing and makes mixed fillers;
(3) the resin alcohol solution, the mixed fillers that in banburying tank, in proportion inorfil, glass fibre and (1), (2) are made fully mix, through hydraulic press heating and mould pressing moulding profiled member processed, finally by reprocessings such as polishings, make brake block again.
5. the preparation method of brake block according to claim 4, is characterized in that: in step (3), molding temperature is 150 ℃-155 ℃ of temperature 3 hours-5 hours time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410364673.5A CN104179858A (en) | 2014-07-29 | 2014-07-29 | Brake pad enhanced with smelting slag and fly ash inorganic fibers as well as preparation method of brake pad |
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| CN201410364673.5A CN104179858A (en) | 2014-07-29 | 2014-07-29 | Brake pad enhanced with smelting slag and fly ash inorganic fibers as well as preparation method of brake pad |
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| CN104179858A true CN104179858A (en) | 2014-12-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086355A (en) * | 2015-09-29 | 2015-11-25 | 福州大学 | Slag powder reinforced resin matrix composite material for automobile braking |
| CN108458015A (en) * | 2018-01-30 | 2018-08-28 | 湖北飞龙摩擦密封材料股份有限公司 | A kind of drum brake lining |
| CN110903731A (en) * | 2019-10-17 | 2020-03-24 | 山东金麒麟股份有限公司 | Baking-free etching agent for brake pad, preparation and application methods and brake pad |
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| EP1369403A1 (en) * | 2002-05-29 | 2003-12-10 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Process for the production of a component having a tribologically stressed functional surface |
| CN101033785A (en) * | 2006-03-09 | 2007-09-12 | 王长达 | Asbestos-free metal-free drum brake lining used in vehicle and manufacture method therefor |
| CN101033339A (en) * | 2007-04-18 | 2007-09-12 | 同济大学 | Wood-plastic material and its preparation method |
| CN101168479A (en) * | 2007-10-09 | 2008-04-30 | 上海榕新实业有限公司 | Method for preparing ultra-fine inorganic fibre by using industrial solid castoff |
| CN102206482A (en) * | 2011-02-28 | 2011-10-05 | 浙江吉利汽车研究院有限公司 | Preparation method of carbon fiber brake block |
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2014
- 2014-07-29 CN CN201410364673.5A patent/CN104179858A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1369403A1 (en) * | 2002-05-29 | 2003-12-10 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Process for the production of a component having a tribologically stressed functional surface |
| CN101033785A (en) * | 2006-03-09 | 2007-09-12 | 王长达 | Asbestos-free metal-free drum brake lining used in vehicle and manufacture method therefor |
| CN101033339A (en) * | 2007-04-18 | 2007-09-12 | 同济大学 | Wood-plastic material and its preparation method |
| CN101168479A (en) * | 2007-10-09 | 2008-04-30 | 上海榕新实业有限公司 | Method for preparing ultra-fine inorganic fibre by using industrial solid castoff |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086355A (en) * | 2015-09-29 | 2015-11-25 | 福州大学 | Slag powder reinforced resin matrix composite material for automobile braking |
| CN108458015A (en) * | 2018-01-30 | 2018-08-28 | 湖北飞龙摩擦密封材料股份有限公司 | A kind of drum brake lining |
| CN108458015B (en) * | 2018-01-30 | 2020-01-07 | 湖北飞龙摩擦密封材料股份有限公司 | Drum type brake lining |
| CN110903731A (en) * | 2019-10-17 | 2020-03-24 | 山东金麒麟股份有限公司 | Baking-free etching agent for brake pad, preparation and application methods and brake pad |
| CN110903731B (en) * | 2019-10-17 | 2021-09-28 | 山东金麒麟股份有限公司 | Baking-free etching agent for brake pad, preparation and application methods and brake pad |
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| CB03 | Change of inventor or designer information |
Inventor after: Ju Baozhong Inventor before: Ju Baozhong Inventor before: Zheng Xiaopeng Inventor before: Chen Junzhi Inventor before: Zheng Rong |
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Application publication date: 20141203 |
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